Australian Politics Forum - MWP warmer than present: peer-reviewed research.

gold_medal

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MWP warmer than present: peer-reviewed research.
Jan 9^th, 2013 at 4:22pm

http://www.c3headlines.com/2010/06/2010-antarctica-peerreviewed-research-ice-core-data-confirms-medieval-period-warmer-than-present.html

2010 Antarctica Peer-Reviewed Research: Ice Core Data Confirms Medieval Period Warmer Than Present

Read here. Scientists using the latest analysis techniques, conducted a high resolution analysis of the ice core retrieved from Antarctica's Dome C station. The Dome C is located on the eastern half of Antarctica, on the polar plateau with an elevation of 10,607 feet. (The more well-known Vostok polar station is located on the same plateau at a similar elevation, ~ 3,200 meters.)

What did this new high resolution analysis determine?
1.The Medieval Warming period had temperatures that approached 1°C higher than current temperatures, in spite of lower CO2 levels.
2.The Minoan Warming period had temperatures that possibly exceeded current temperatures by 1°C, in spite of lower CO2 levels.
3.The previous interglacial period, approximately 130,000 years ago, had temperatures in excess of 4°C versus current temperatures, in spite of lower CO2 levels.

Clearly, the new ice core data indicates that natural climate variations caused huge temperature variations in the past. Based on this empirical climate science, it would be safe to conclude that current climate changes are predominantly driven by natural forces (see this chart and post also), not human CO2 trace gas emissions. (click on image to enlarge)

This high resolution ice core data ends at the year 1912. The similarly situated Vostok polar station temperature record was used as proxy to assess polar plateau temperature increase/decrease over the last 60 years. As the Vostok temperature data reveals, current temperatures may actually be lower than what the Antarctica plateau experienced during the 1950's. In addition, peer-reviewed studies indicate Antarctica temperature change to be minimal over last two centuries.

Download this newest Dome C ice core research, source here.

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gold_medal Gold Member Offline Australian Politics Posts: 3897 Gender:	Re: MWP warmer than present: peer-reviewed research. Reply #1 - Jan 10^th, 2013 at 6:47am bump for dumb-bunny
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cods Gold Member Offline Australian Politics Posts: 88048	Re: MWP warmer than present: peer-reviewed research. Reply #2 - Jan 10^th, 2013 at 7:10am havent we got it on good authority from the experts on here. THERE WILL BE NO ICE IN ANTARCTICA BY THE YEAR 2013.. I could have swore we were sworn at for not believing we.. you and I GM could actually stop it if we really wanted too.
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Armchair_Politician

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Re: MWP warmer than present: peer-reviewed research.
Reply #3 - Jan 10^th, 2013 at 7:17am

cods wrote on Jan 10^th, 2013 at 7:10am:

havent we got it on good authority from the experts on here.

THERE WILL BE NO ICE IN ANTARCTICA BY THE YEAR 2013..

I could have swore we were sworn at for not believing we.. you and I GM

could actually stop it if we really wanted too.

Gillard's new catchphrase: "There will be no glaciers under a government I lead unless we tax the sh!t out of you!"

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philperth2010

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Re: MWP warmer than present: peer-reviewed research.
Reply #4 - Jan 10^th, 2013 at 7:59am

Quote:

Read full story here.....
http://www.climatecentral.org/news/so-called-medieval-warm-period-not-so-warm-15...

So-Called Medieval Warm Period Not So Warm After All

The so-called Medieval Warm Period (MWP), a 400-year span from about 950 to 1220 A.D. when the Vikings colonized Greenland, was relatively balmy by the standards of the past 2,000 years, leading some to argue that the global warming we’re now experiencing isn’t that big a deal. But a new report in the journal Geology argues that the MWP wasn’t all that warm after all — and certainly not as warm as the climate is today.

The following article is more objective but still interesting.....

Quote:

Full story here....
http://online.wsj.com/article/SB10001424052970204349404578100862654023702.html

Can Medieval Heat Cool Warming Worries?

The debate continues.....Sorry to burst your tiny bubble Longy!!!

Cool

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If knowledge can create problems, it is not through ignorance that we can solve them.
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philperth2010

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Re: MWP warmer than present: peer-reviewed research.
Reply #5 - Jan 10^th, 2013 at 8:01am

Armchair_Politician wrote on Jan 10^th, 2013 at 7:17am:

cods wrote on Jan 10^th, 2013 at 7:10am:

havent we got it on good authority from the experts on here.

THERE WILL BE NO ICE IN ANTARCTICA BY THE YEAR 2013..

I could have swore we were sworn at for not believing we.. you and I GM

could actually stop it if we really wanted too.

Gillard's new catchphrase: "There will be no glaciers under a government I lead unless we tax the sh!t out of you!"

Yet Abbott is committed to the same reductions in emissions.....Using consolidated revenue from taxes to pay for it.....What services do you think we can do without to pay for Abbott's failed climate policy???

Huh

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If knowledge can create problems, it is not through ignorance that we can solve them.
Isaac Asimov (1920 - 1992)

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gold_medal

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Re: MWP warmer than present: peer-reviewed research.
Reply #6 - Jan 10^th, 2013 at 8:12am

philperth2010 wrote on Jan 10^th, 2013 at 7:59am:

Quote:

Read full story here.....
http://www.climatecentral.org/news/so-called-medieval-warm-period-not-so-warm-15...

So-Called Medieval Warm Period Not So Warm After All

The so-called Medieval Warm Period (MWP), a 400-year span from about 950 to 1220 A.D. when the Vikings colonized Greenland, was relatively balmy by the standards of the past 2,000 years, leading some to argue that the global warming we’re now experiencing isn’t that big a deal. But a new report in the journal Geology argues that the MWP wasn’t all that warm after all — and certainly not as warm as the climate is today.

The following article is more objective but still interesting.....

Quote:

Full story here....
http://online.wsj.com/article/SB10001424052970204349404578100862654023702.html

Can Medieval Heat Cool Warming Worries?

The debate continues.....Sorry to burst your tiny bubble Longy!!!

Cool

both interesting articles but as you observed, the former is a rather biased one. and the p[oin is that the entie ACC hypothesis hinges on todays temperatures being unprecedented. the existence of a warmer MWP utterly destroys that argument.

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salad in

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Re: MWP warmer than present: peer-reviewed research.
Reply #7 - Jan 10^th, 2013 at 8:51am

gold_medal wrote on Jan 9^th, 2013 at 4:22pm:

http://www.c3headlines.com/2010/06/2010-antarctica-peerreviewed-research-ice-core-data-confirms-medieval-period-warmer-than-present.html

2010 Antarctica Peer-Reviewed Research: Ice Core Data Confirms Medieval Period Warmer Than Present

Read here. Scientists using the latest analysis techniques, conducted a high resolution analysis of the ice core retrieved from Antarctica's Dome C station. The Dome C is located on the eastern half of Antarctica, on the polar plateau with an elevation of 10,607 feet. (The more well-known Vostok polar station is located on the same plateau at a similar elevation, ~ 3,200 meters.)

What did this new high resolution analysis determine?
1.The Medieval Warming period had temperatures that approached 1°C higher than current temperatures, in spite of lower CO2 levels.
2.The Minoan Warming period had temperatures that possibly exceeded current temperatures by 1°C, in spite of lower CO2 levels.
3.The previous interglacial period, approximately 130,000 years ago, had temperatures in excess of 4°C versus current temperatures, in spite of lower CO2 levels.

Clearly, the new ice core data indicates that natural climate variations caused huge temperature variations in the past. Based on this empirical climate science, it would be safe to conclude that current climate changes are predominantly driven by natural forces (see this chart and post also), not human CO2 trace gas emissions. (click on image to enlarge)

This high resolution ice core data ends at the year 1912. The similarly situated Vostok polar station temperature record was used as proxy to assess polar plateau temperature increase/decrease over the last 60 years. As the Vostok temperature data reveals, current temperatures may actually be lower than what the Antarctica plateau experienced during the 1950's. In addition, peer-reviewed studies indicate Antarctica temperature change to be minimal over last two centuries.

Download this newest Dome C ice core research, source here.

Mods please remove this article. It adds nothing to the general hysteria surrounding AGW/climate change/polar bears stuck on postage stamp sized blocks of ice/Great Barrier Reef demise.

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The_Barnacle

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Re: MWP warmer than present: peer-reviewed research.
Reply #8 - Jan 10^th, 2013 at 9:46am

gold_medal wrote on Jan 9^th, 2013 at 4:22pm:

http://www.c3headlines.com/2010/06/2010-antarctica-peerreviewed-research-ice-core-data-confirms-medieval-period-warmer-than-present.html

2010 Antarctica Peer-Reviewed Research: Ice Core Data Confirms Medieval Period Warmer Than Present

It may be "peer reviewed" but the conclusions are purely from the Warming skeptics.

Here is what the actually scientist said about the study

Quote:

Unfortunately only one core turned out to yield significant numbers of ikaite crystals, in the Firth of Tay at the far northeast of the Antarctic Peninsula. And even here there weren't many. 'We only found 11 ikaite crystals over 2000 years. The sediments here accumulated quickly, at about 2mm per year, but the crystals are about two metres apart, so the study doesn't give us very high resolution,' Rickaby says.

Rickaby says much more study of Antarctic ikaite is needed before we can be sure of the findings. 'Our study only looked at one place, and the results are a long way from being definitive - it's far too early to draw broad conclusions from this,' she says.

Read more at: http://phys.org/news/2012-05-technique-medieval-period-antarctica.html#jCp

So its "far too early to draw broad conclusions from this" but that sure hasn't stopped the bloggers going into overdrive.

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The_Barnacle

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Re: MWP warmer than present: peer-reviewed research.
Reply #9 - Jan 10^th, 2013 at 9:54am

gold_medal wrote on Jan 9^th, 2013 at 4:22pm:

Clearly, the new ice core data indicates that natural climate variations caused huge temperature variations in the past. Based on this empirical climate science, it would be safe to conclude that current climate changes are predominantly driven by natural forces, not human CO2 trace gas emissions.

This is the usual faulty logic by the skeptics (or plain deceptive logic).

Just because the climate changed naturally in the past does not mean that the current warming has to be natural also.

Quite the opposite. The fact that natural forces were able to change the climate in the past gives more weight to the idea that mankinds tinkering with the atmosphere (by increasing the concentrations of greenhouse gasses) can also change the climate.

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progressiveslol

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Re: MWP warmer than present: peer-reviewed research.
Reply #10 - Jan 10^th, 2013 at 9:55am

The_Barnacle wrote on Jan 10^th, 2013 at 9:46am:

gold_medal wrote on Jan 9^th, 2013 at 4:22pm:

http://www.c3headlines.com/2010/06/2010-antarctica-peerreviewed-research-ice-core-data-confirms-medieval-period-warmer-than-present.html

2010 Antarctica Peer-Reviewed Research: Ice Core Data Confirms Medieval Period Warmer Than Present

It may be "peer reviewed" but the conclusions are purely from the Warming skeptics.

Here is what the actually scientist said about the study

Quote:

Unfortunately only one core turned out to yield significant numbers of ikaite crystals, in the Firth of Tay at the far northeast of the Antarctic Peninsula. And even here there weren't many. 'We only found 11 ikaite crystals over 2000 years. The sediments here accumulated quickly, at about 2mm per year, but the crystals are about two metres apart, so the study doesn't give us very high resolution,' Rickaby says.

Rickaby says much more study of Antarctic ikaite is needed before we can be sure of the findings. 'Our study only looked at one place, and the results are a long way from being definitive - it's far too early to draw broad conclusions from this,' she says.

Read more at: http://phys.org/news/2012-05-technique-medieval-period-antarctica.html#jCp

So its "far too early to draw broad conclusions from this" but that sure hasn't stopped the bloggers going into overdrive.

These pretty graphs and sources should keep you going a while. Look forward to you reporting back.

http://www.c3headlines.com/temperature-charts-historical-proxies.html

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The_Barnacle

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Re: MWP warmer than present: peer-reviewed research.
Reply #11 - Jan 10^th, 2013 at 10:10am

progressiveslol wrote on Jan 10^th, 2013 at 9:55am:

These pretty graphs and sources should keep you going a while. Look forward to you reporting back.

http://www.c3headlines.com/temperature-charts-historical-proxies.html

Boring. Seem them all before, they are nothing new.

We all know the climate changed in the past, for various reasons (changes in the earths orbit, changes in continental drift and changes in the atmosphere). What we are saying is that this current change in climate is being caused by the current human induced change in the atmosphere.

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The Right Wing only believe in free speech when they agree with what is being said.

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sir prince duke alevine Gold Member Offline Australian Politics Posts: 23619 Gender:	Re: MWP warmer than present: peer-reviewed research. Reply #12 - Jan 10^th, 2013 at 10:11am .
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progressiveslol

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Re: MWP warmer than present: peer-reviewed research.
Reply #13 - Jan 10^th, 2013 at 11:17am

The_Barnacle wrote on Jan 10^th, 2013 at 10:10am:

progressiveslol wrote on Jan 10^th, 2013 at 9:55am:

These pretty graphs and sources should keep you going a while. Look forward to you reporting back.

http://www.c3headlines.com/temperature-charts-historical-proxies.html

Boring. Seem them all before, they are nothing new.

We all know the climate changed in the past, for various reasons (changes in the earths orbit, changes in continental drift and changes in the atmosphere). What we are saying is that this current change in climate is being caused by the current human induced change in the atmosphere.

But you cant say that without correlation. The cimate changed in the past without correlation to co2, just like is is now changing and stopping regardless of co2.

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The_Barnacle

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Re: MWP warmer than present: peer-reviewed research.
Reply #14 - Jan 10^th, 2013 at 11:38am

progressiveslol wrote on Jan 10^th, 2013 at 11:17am:

But you cant say that without correlation. The cimate changed in the past without correlation to co2, just like is is now changing and stopping regardless of co2.

As I have already said CO2 isn't the only thing that changes climate but it is one of the things.

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